Examine source code of Rush to Ruins

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Rush to Ruins",
  "theme": {
    "images": {},
    "properties": {},
    "colors": {
      "toolbar": "rgb(3, 89, 111)",
      "toolbar_text": "rgb(248, 80, 115)",
      "frame": "rgb(151, 87, 180)",
      "tab_background_text": "rgb(145, 242, 255)",
      "toolbar_field": "rgb(26, 149, 168)",
      "toolbar_field_text": "rgb(255, 255, 255)",
      "tab_line": "rgb(240, 34, 97)",
      "popup": "rgb(3, 89, 111)",
      "popup_text": "rgb(255, 255, 255)",
      "button_background_active": "rgb(56, 42, 169)",
      "button_background_hover": "rgb(136, 52, 188)",
      "tab_selected": "rgb(1, 26, 40)",
      "toolbar_field_highlight": "rgb(164, 15, 60)",
      "toolbar_top_separator": "rgb(240, 34, 97)",
      "tab_loading": "rgb(240, 34, 97)"
    }
  }
}